Why mess up a good thing. The Mustang returns in 2008, virtually unaltered for its 4th year. Changes are mainly in the options. Side impact air bags become standard. New options include: ambient interior lighting; HID headlights; V6 18-inch wheels; a new V6 safety and security package; and a Warriors In Pink package for the V6 Premium coupe or convertible with automatic transmission. Models include the base level V6, GT, Shelby GT, and SVT Shelby GT500. Both the V6 and GT models are offered in the Deluxe or Premium versions - where the Premium upgrades the audio system and seats.